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The role of electromagnetic flow meter grounding in actual installation

The role of electromagnetic flow meter grounding in actual installation. Compared with other flowmeter products, electromagnetic flowmeter has high precision, reliable performance, stable work and excellent anti-interference ability. However, as a precision instrument, in order to meet these high requirements, it is necessary to have strict installation requirements, this article will introduce the electromagnetic flowmeter grounding wire that is often not paid attention to when installing.

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First, let’s take a look at the importance of grounding wires. Why do I need grounding? Because the potential signal of the electromagnetic flowmeter itself is relatively small, if electromagnetic interference is encountered in the measurement process, it will seriously affect the normal measurement signal, resulting in the loss of due accuracy of the measurement data. The grounding can avoid the potential generated by the washing of the measured medium in the pipeline, avoid interference with the measurement signal, and make the electromagnetic flowmeter work in a better state.

Secondly, the way of grounding is also exquisite. One can be grounded through the electromagnetic flowmeter grounding wire, and the other can use the grounding ring to ground through the pipeline. The grounding method depends on the actual installation environment.

Generally, if the process pipe is made of metal, it can not be equipped with a ground ring. If the pipe is non-metallic, it must be equipped with a grounding ring, and grounding is very important for electromagnetic flowmeters. It is not an exaggeration to say that if the non-metallic pipe is not equipped with ground, then the value measured by the electromagnetic flowmeter has no reference significance.

Finally, when the electromagnetic flowmeter is set to ground, try to use the shielded wire to ground separately, and can not save trouble to the ground wire and the electric motor, electrical appliances and other public ground wires.

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